Originally Posted by Doug64

Several years ago I was at a hypothermia clinic and talked to one of the doctors who was giving a presentation. I was telling him about the "cotton kills" information we have in our ski patrol's cabin. He said that is true for the winter, but in extremely hot dry conditions cotton can be much more comfortable compared to "wicking" fabrics. It is more efficient at evaporative cooling than synthetics. Also when you are hot and dry, pouring water down your back for cooling is a lot more effective with cotton.